There are certain requirements that must be met to be eligible to participate in a clinical study. These requirements are based on such factors as age, gender, the type and stage of disease, previous and current treatments, and other medical conditions.

Many people may be eligible to participate in clinical studies, including:

Children and adults with a medical condition who are seeking an alternative to available standard-of-care treatments or who wish to contribute to research that may contribute to the health of others in the future. They may be patients with newly diagnosed medical problems or they may have had a serious disease for a long time.

Healthy volunteers who want to help researchers advance medical or scientific knowledge may also participate in clinical research. They provide important medical information to researchers by helping them learn about the safety of new investigational treatments.

The individuals who appear throughout this site are for illustrative purposes only. Except where noted, all persons depicted are models and not real patients.